Frothing device



FIG. 1 is a top perspective view embodying the inventive design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side thereof, with the left side being a mirror image of the right side;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a frothing device, as shown and described. 